Radio frequency identification system
A radio frequency identification system includes a transponder and a transponder reader. The transponder, responsive to an interrogation signal continuously transmitted by the transponder reader, gene... Read More
Inventors: Geiszler, Kenneth; Walker, Russel E.; Whiston, Kenneth Alan; Kwong, Jon; Lindseth, Dale;, Assignee: Keri Systems, Inc. (San Jose, CA) |
Hard security tag and detaching device
The embodiments may be directed to a security system. The security system may be, for example, an EAS system. The EAS system may comprise a security tag, a detaching device and monitoring system. In ... Read More
Inventors: Hogan, Dennis L.;, Assignee: Sensormatic Electronics Corporation (Boca Raton, FL) |
Proximity sensing based on antenna impedance variation
The present invention provides a simple system and method for proximity detection representing a desirable alternative to the capacitive and other sensing systems and methods referred to above. More p... Read More
Inventors: Casebolt, Mark W.; Ranta, Craig S.;, Assignee: Microsoft Corporation (Redmond, WA) |
Electrical resistance measurement
I claim: 1. A method of monitoring a resistance modifying parameter of a test element by passing a current through said test element and a reference element connected in series therewith, maintaining ... Read More
Inventors: Quayle, Joshua C.;, Assignee: Imperial Chemical Industries Limited (London, GB2) |
Temperature detection circuit
The above objectives can be met by a temperature detection circuit described below. The circuit comprises: a first current source coupled to a detection node; a second current source coupled in series... Read More
Inventors: Yamamoto, Satoshi; Hatakeyama, Akira;, Assignee: |
Measuring cell and measuring field comprising measuring cells of this type, use of a measuring and use of a measuring field
Consequently, the invention is based on the problem of providing a measuring cell and also a measuring array having measuring cells which satisfy the requirements set and are robust and universally us... Read More
Inventors: Brederlow, Ralf; Eversmann, Bjorn-Oliver; Koren, Ivo; Paulus, Christian; Thewes, Roland;, Assignee: Infineon Technologies AG (Munich, DE) |
Finger-cot probe
The present invention relates to a low-noise oximetric finger-cot probe. The finger-cot probe is nonadhesively attached to a human digit (e.g., a finger) so that the digit will remain essentially nond... Read More
Inventors: Branigan, Brendan; Kiani-Azarbayjany, Esmaiel;, Assignee: Masimo Corporation (Laguna Hills, CA) |
Signal processing apparatus
This invention is an improvement of U.S. patent application Ser. No. 07/666,060 filed Mar. 7, 1991 and entitled Signal Processing Apparatus and Method, which earlier application has been assigned to t... Read More
Inventors: Diab, Mohamed K.; Kiani-Azarbayjany, Esmaiel; Weber, Walter M.;, Assignee: Masimo Corporation (Mission Viejo, CA) |
Apparatus and method for measuring an induced perturbation to determine blood pressure
OF THE PREFERRED EMBODIMENTS A preferred embodiment concentrates on the physiological parameter of blood pressure, however, many additional physiological parameters can be measured with the present i... Read More
Inventors: Caro, Richard G.; Sher, Mark H.;, Assignee: Vital Insite, Inc. (So. San Francisco, CA) |
Active pulse blood constituent monitoring
Due to the parameters required by the Beer-Lambert law, the difficulties in detecting glucose concentration arise from the difficulty in determining the exact path length through a medium (resulting f... Read More
Inventors: Kiani-Azarbayjany, Esmaiel; Diab, Mohamed Kheir; Lepper, Jr., James M.;, Assignee: Masimo Corporation (Mission Viejo, CA) |
Patient cable connector
The present invention involves a connector that is configured to attach both disposable and durable sensors to instruments that are responsive to signals from the sensors or to cables from the instrum... Read More
Inventors: Tobler, David R.; Gerhardt, Thomas J.; Mason, Eugene E.; Mills, Mike A.;, Assignee: Masimo Corporation (Mission Viejo, CA) |
Blood glucose monitoring system
Due to the parameters required by the Beer-Lambert law, the difficulties in detecting glucose concentration arise from the difficulty in determining the exact path length through a medium (resulting f... Read More
Inventors: Lepper, Jr., James M.; Diab, Mohamed Kheir;, Assignee: Masimo Corporation (Irvine, CA) |
Optical filter for spectroscopic measurement and method of producing the optical filter
The present invention provides a rotating dichroic filter for spectroscopic measurement wherein the cost of the filter is approximately 100 times less than conventional rotating dichroic filters. This... Read More
Inventors: Lepper, Jr., James M.; Diab, Mohamed Kheir;, Assignee: Masimo Corporation (Irvine, CA) |
Low-noise optical probes
The present invention involves a probe for use in non-invasive energy absorption (or reflection) measurements. One aspect of the present embodiment involves an optical probe for non-invasive measureme... Read More
Inventors: Diab, Mohamed; Kiani, Massi E.; Tobler, David R.; Gerhardt, Thomas J.; Mason, Eugene M.; Mills, Mike A.;, Assignee: Masimo Corporation (Mission Viejo, CA) |
Motion insensitive pulse detector
Motion artifact is a significant problem in making accurate physiological measurements related to the cardiac cycle because the frequency range of the cardiac cycle signal overlaps with the frequency... Read More
Inventors: Flaherty, Bryan P.; Sher, Mark H.; Caro, Richard G.;, Assignee: Vital Insite, Inc. (South San Francisco, CA) |
Manual and automatic probe calibration
In conventional oximeters which provide an indication of the operational wavelength of each LED for each sensor, the oximeter systems are programmed to perform the desired calculations for various wav... Read More
Inventors: Diab, Mohamed Kheir; Kiani, Massi E.; Ragsdale, Charles Robert; Lepper, Jr., James M.;, Assignee: Masimo Corporation (Irvine, CA) |
Apparatus and method for measuring an induced perturbation to determine a physiological parameter
OF THE PREFERRED EMBODIMENTS A preferred embodiment concentrates on the physiological parameter of blood pressure, however, many additional physiological parameters can be measured with the present i... Read More
Inventors: Caro, Richard G.; Sher, Mark H.;, Assignee: Vital Insite, Inc. (South San Francisco, CA) |
Active pulse blood constituent monitoring method
Due to the parameters required by the Beer-Lambert law, the difficulties in detecting glucose concentration arise from the difficulty in determining the exact path length through a medium (resulting f... Read More
Inventors: Kiani-Azarbayjany, Esmaiel; Diab, Mohamed Kheir; Lepper, Jr., James M.;, Assignee: Masimo Corporation (Irvine, CA) |
Exciter-detector unit for measuring physiological parameters
This invention relates generally to an exciter-detector unit and more particularly to an assembly which includes an exciter and a detector mounted on a common support for inducing perturbations into t... Read More
Inventors: Wohltmann, William J.; Sher, Mark H.; Flaherty, Bryan F.; Caro, Richard G.;, Assignee: Vital Insite, Inc. (South San Francisco, CA) |
Patient cable connector
The present invention involves a connector that is configured to attach both disposable and durable sensors to instruments that are responsive to signals from the sensors or to cables from the instrum... Read More
Inventors: Tobler, David R.; Gerhardt, Thomas J.; Mason, Eugene E.; Mills, Mike A.;, Assignee: Masimo Corporation (Irvine, CA) |
Pulse oximetry sensor adapter
A drawback to conventional pulse oximetry systems is the lack of standardization of the sensor and the monitor. Unless the sensor and the monitor are manufactured by the same company, it is unlikely t... Read More
Inventors: Kiani, Massi E.; Smith, Robert A.; Tobler, David R.;, Assignee: Masimo Corporation (Irvine, CA) |
Signal processing apparatus and method
The present invention involves several different embodiments using the novel signal model in accordance with the present invention to estimate the desired signal portion of a measured data signal wher... Read More
Inventors: Diab, Mohamed K.; McCarthy, Rex;, Assignee: Masimo Corporation (Mission Viejo, CA) |
Rapid non-invasive blood pressure measuring device
The present invention is a method and apparatus for quickly determining a blood pressure value at a specific time. An external pressure is supplied to the artery so that the artery experiences a range... Read More
Inventors: Flaherty, Bryan Patrick; Sher, Mark Henry; Caro, Richard G.;, Assignee: Vital Insite, Inc. (South San Francisco, CA) |
Apparatus and method for measuring an induced perturbation to determine a physiological parameter
OF THE PREFERRED EMBODIMENTS A preferred embodiment concentrates on the physiological parameter of blood pressure, however, many additional physiological parameters can be measured with the present i... Read More
Inventors: Caro, Richard G.; Sher, Mark H.; Flaherty, Bryan P.;, Assignee: Vital Insite, Inc. (South San Francisco, CA) |
Signal processing apparatus
This invention provides improvements upon the methods and apparatus disclosed in U.S. patent application Ser. No. 08/132,812, filed Oct. 6, 1993, entitled Signal Processing Apparatus, which earlier ap... Read More
Inventors: Diab, Mohamed K.; Kiani, Massi E.; Elfadel, Ibrahim M.; McCarthy, Rex J.; Weber, Walter M.; Smith, Robert A.;, Assignee: Masimo Corporation (Irvine, CA) |
Blood glucose monitoring system
Due to the parameters required by the Beer-Lambert law, the difficulties in detecting glucose concentration arise from the difficulty in determining the exact path length through a medium (resulting f... Read More
Inventors: Lepper, Jr., James M.; Diab, Mohamed Kheir;, Assignee: Masimo Laboratories (Irvine, CA) |
Circuit board based cable connector
Accordingly, the present invention involves a connector that is configured to attach sensors to instruments (typically via cables) that are responsive to signals from the sensors. In a preferred embod... Read More
Inventors: Gerhardt, Thomas J.; Abdul-Hafiz, Yassir;, Assignee: Masimo Corporation (Irvine, CA) |
Patient cable sensor switch
A drawback to conventional pulse oximetry systems is the lack of standardization of the sensor and the monitor. Unless the same company manufactures the sensor and the monitor, it is unlikely that the... Read More
Inventors: Mills, Michael A.; Gerhardt, Thomas J.;, Assignee: Masimo Corporation (Irvine, CA) |
Signal processing apparatus and method
The present invention is a signal processor which acquires a first signal and a second signal that is correlated to the first signal. The first signal comprises first desired signal portion and a firs... Read More
Inventors: Diab, Mohamed Kheir; Kiani-Azarbayjany, Esmaiel;, Assignee: Masimo Corporation (Irvine, CA) |
Signal processing apparatus
This invention provides improvements upon the methods and apparatus disclosed in U.S. patent application Ser. No. 08/132,812, filed Oct. 6, 1993, entitled Signal Processing Apparatus, which earlier ap... Read More
Inventors: Diab, Mohamed K.; Kiani-Azarbayjany, Esmaiel; Elfadel, Ibrahim M.; McCarthy, Rex J.; Weber, Walter M.; Smith, Robert A.;, Assignee: Masimo Corporation (Irvine, CA) |
Communications 
